groo-ga.pl: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/groo-ga.pl - from package: gramadoir

You may install the required package with command apt-get install {package}
Error in other languages:
groo-ga.pl: bevel nie gevind nie
groo-ga.pl: comandă negăsită
groo-ga.pl: comando não encontrado
groo-ga.pl: commande introuvable
groo-ga.pl: command not found
groo-ga.pl: käsku ei ole
groo-ga.pl: không tìm thấy lệnh
groo-ga.pl: komanda nerasta
groo-ga.pl: Kommando nicht gefunden.
groo-ga.pl: kommandot finns inte
groo-ga.pl: komut yok
groo-ga.pl: nie znaleziono polecenia
groo-ga.pl: níor aimsíodh an t-ordú
groo-ga.pl: no se encontró la orden
groo-ga.pl: no s'ha trobat l'ordre
groo-ga.pl: opdracht niet gevonden
groo-ga.pl: parancs nem található
groo-ga.pl: perintah tidak ditemukan
groo-ga.pl: príkaz nenájdený
groo-ga.pl: příkaz nenalezen
groo-ga.pl: команда не найдена
groo-ga.pl: командата не е открита
groo-ga.pl: 命令找不到
groo-ga.pl: コマンドが見つかりません